English

Developer tool

Create SHA-1, SHA-256, SHA-384, or SHA-512

Hash text with SHA-1, SHA-256, SHA-384, or SHA-512 and copy hex or Base64. Hashing stays on your device.

Create a SHA hash from text with the Web Crypto API. Nothing is sent to NEXNARA.

  • Runs locally
  • No uploads
  • Instant
  • Free

This is not a password-storage or password-hashing tool.

Processing happens locally in your browser.

How it works

  1. Paste your data
  2. Run the action
  3. Copy the result

Why NEXNARA

  • Private

    Your data stays in your browser.

  • Instant

    Results appear immediately.

  • No uploads

    Nothing is sent to a NEXNARA server.

  • Works anywhere

    No installation required.

What is a hash generator?

A cryptographic hash turns any input into a fixed-length digest. The same text always produces the same hash. You cannot reliably reverse a hash to recover the original text.

How to use it

Paste text, choose SHA-1, SHA-256, SHA-384, or SHA-512, then press Generate Hash. Copy copies the hexadecimal digest. A Base64 form is shown as well.

Which SHA algorithm should I use?

SHA-256 is a common default for checksums and integrity checks. SHA-384 and SHA-512 are longer. SHA-1 still appears in older systems but should not be used for new security designs.

Common uses

Use hashes to fingerprint a string or compare two pieces of text. Do not use this page as a password hasher or to store passwords.

Privacy

Your text is hashed in the browser with crypto.subtle.digest. It is not uploaded to NEXNARA servers and is not saved in cookies, local storage, or a database.

FAQ

Can a hash be reversed?

A SHA hash is not designed to be reversed. You can compare hashes, but you should not expect to recover the original text from the digest.

Which SHA algorithm should I use?

SHA-256 is a practical default. Prefer SHA-384 or SHA-512 when you want a longer digest. Avoid SHA-1 for new security-sensitive work.

Can I hash passwords here?

You can hash any string, but this is not a password-storage tool. Password hashing needs a slow, salted algorithm designed for that job.

Is my text uploaded?

No. Processing happens locally in your browser and is not uploaded to our servers.

What outputs are shown?

Hexadecimal is the main output. Base64 of the same digest is also shown for convenience.

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